Piston-ring remover



A.'L. KLECKLEY. PISTON RING REMOVER. APPLICATION FILED Au`G.I-A4. 1920.

1,391,548, Pandsept. 20,1921.l

U 'NIU UNITED 'STATES'A .PATENT OFFICE.v

ALVINL. KLECKLEY, OF CHARLOTTE, NORTHICAROIIINL i r-IsToNRING itnirrovrm.,` l

To all whom t may concern:

Be' it known that I, ArlvrN L. KLECKLEY, a citizen of the United States, residing at Charlotte, in the county of Mecklenburg and State of North Carolina, have invented newV and useful Improvements `in Piston- Ring Removers, of which the following Vis a specification.

This invention relates'to a device for removing and replacing piston-rings and the general object of the invention` is 'to provide a simple, economical and effective tool of this type having end portions which may be inserted between the extremities of la pistonring for the purpose of expanding the lsame so that it may be readily removed from the piston-ring groove and over the larger part of the piston.

A further object of the invention is to provide mea'nsfor retaining the` ring in engaging relation with said end portions so as to preventthe ring from slipping out of the grasp of the tool.

Another object of the invention is to provide a latch mechanism in connection with the movable jaws of the extractor so that the initial'separation of the'jaws suitable for insertion within the gap between the ends of the piston-ring may be regulated without pressing the handles. ,v

Other `object-s ofthe invention will appear as the description proceeds.

In the accompanying drawings Figure 1 is aside elevation of the pre- 35,

terred form of my piston-ring remover. Fig. 2 is a side elevation showing the piston-ring remover applied to apiston-ringv and the latch mechanism in engaging rela- 'ttion whereby the lugs are maintained lin slightly spaced relation.

Fig. 3 is a top view of the device. l Fig. 4 is `an end view. of the tool in the position shown in Fig. 2.

My device comprises principallyptwo jaw members-10 and 11 which are preferablyA made of flat steel plates having rounded vprojections 12 and 13 provided with apertures which are adapted to aline when said projections are placed in overlapping relation so as to receive a pivot-pin or screw 14 therethrough. The screw 14 is maintained in place by the nut 15. The jaw members 10 and 11 are formed with outwardly curved handle 16 and 17 that may be conveniently grasped in the hand for the purpose of 2perating the jaw members about the pivot.

Specification of Letters Patent. Patentedv Slept.y 20, 1921. Appiication mea August 14, izo. seria; no. 403,559.

The opposite' end, or' piston-rin engaging end of the device is formedwith lugs 18` and 19 integral respectively'with the jaw members 10 and `11. These lugs are slightly hook-shaped inV order to prevent the'pistonring fromV slippingV away from the jaws while opposite sides of the pivoted members 10 and 11 by means of rivets or screws 22.

The side members20 Van`d21 comprise a vset associated with each jaw member. The

plate 20 is'provided with a laterally curved end 20 and the platev21 is merely'a straight.,

strip. These plates are reversely arranged on the jaw members and the laterally curved portions20 compensate forthe'overlapping krelation* of the Ajaw members. These side plates project beyond the forwardv end of j the jaw members in spacedrelation, sufiicient to accommodate the full width ofl a pistonring25.' Upon one of thescrews 22 a latch member 26 is pivoted, said latch memberhaving av l lateral 'projection' 27 which may be con` the thumb for operatveniently engaged by `With ing the latch.v The latch also is formed van inwardly projecting element 28 having a rounded part' which isfadaptedto engage l recesses 29er 30 formed in the member 10, which engagement retains j the member 't in one'of its eXtreme positions, spaced approxifmat'ely ninety degrees apart. The friction to the turning vof, the'flatchi 26, however, l should be suicient 'to maintain it in any adjusted position between these two extremities so that the separation of the lugs 18 and 19 can beregulated to any desired degree. `To the right of the pivot pin V14:

(shown in Figs. 1,2) :the jaw members are cut-away to form shoulders 31, 32 from which project integral stops 33, 34 in opposite directions. These stops vare embraced bythe ends of a coil spring 35. Theistuds 33, 34 thereby provide a guide and retaining .v

means for the spring and are also of such Vlength that they may contact and thereby limit the opening movement of the jaws to prevent themV enough When the latch is in the position shown in Fig. 1, the side plates 20, 21 act as stops to limit the closing movement of the jaw members under the tension of spring 35.

from being opened wide to break or injure the piston-ring. l

'It will be noted that even in the case where the jaws are completely closed as in Y Fig. 1, a gap 36 exists between the side members 20 and 21, which is for the purpose of giving the operator or workmen 'a clear view of the 'point of application of the tool so that they may readily see that the lugs A18 and 19. enter the Vgap in the piston ring and that the side plates are properly Yplaced on the piston ring.

In order to remove a piston-ring, the pis- -fton ,isy iirstremoved from the engine and together thus releasing vthe piston-ring and Y al .'Patelit, -isp- Y v LA` piston, ring remover, comprisingra 'pair of'pivotedV jaw members 4each provided at one end with an 'operating handler and 'providedatits opposite 'end with a lug for insertion in the gap betweenl the ends ofa piston ring, each of ysaid j awshaving a pair placed in a bench-vise by clamping the connecting road therein jpst below the piston. The piston ring is t forced out of the groove, and the lugs of the tool are then inserted in this joint.` or gap 'with the side plates 20'and 21 engaging over the vupjer and lower edges. of the pistonring. y pressisg the handles 16 17 inwardly, against the tension of the springr35,

may b e released and under tension of the spring 35 the lugs 18 and 19 will be forced owingit to contractwithin the groove and properly position itself therein'.`

Having described vmyl j invention, what .l c laimas newT and desire tofsecureby `Letters of side fplates secured thereto, one on each side thereof and projecting beyond the lug' of said.member, one of each v`pair of said platesiadapted to engage the' opposite lj aw tol limitthe closing movement 'Ofsaid jaws and formaspace between .the oiiter end of saidV plate'and the.. end ofl the complemental plate of thegother jaw. Y

2.-:A pistonyring' remover; comprising a' i pair vofpivoted jaw members havingapair of handles at one end, lugs projecting fromV rthe other end of said `members adapted toy V- overlap in normal closed'position for ini en pressed into the. Vgroove so that the joint in the same will he sertion within the gap of aV piston ring, a`

spring acting between said handles for yieldingly maintaining the jawmembers in closed position, side plates secured to said jaw memers and projecting beyond the same Vto en'- eof gage opposite edges of the piston ring, said H side plates also acting as stops to limit the closing movement of the jaw members under the tension of saidspring. Y 3. A piston ring remover comprising a end of said members adapted to overlapV whenin normal closed position for insertion -in the gap, of a piston ring, a spring acting between said handlesfor yieldingly maine5.VV

. pair of pivoted jaw members having` handles` Y at one end, lugs projecting from the other` Y taining the jaw members in' closed position, 'i

side plates secured to said jaw members and projecting beyond-thel same to engage opposite edges of the piston'ring, said side plates being spaced apartvto afford an unobstructed view of the gap in the piston ring and the lugs applied therein, said plates also acting as stops to limit the closing movement 0fv the jaw; members Aunder lthe tension of said s ring.

vpair of pivoted jaw members', operating handles formed Vat-one end and'lugs projectingA from theother end of said membersvfor insertion within the gap of a piston ring, sidev plates secured tosaid j aw members and projectingbeyond the same to engage opposite Vedges of the `piston ring, aspring acting be- 4. ,piston ring'i'remover comprising a V tween said handles for yieldinglyfmaintain- Y ing the j awmembe'rsinV closedposition and Y' means for limiting the closing movement of saidmembers according to the width of said gap.

5. A *pistonu V` 1I-ing. remover ,comprising a y fromfthe other end of said members for inspring actingbetweensaid'handles.for yieldlingly vmaintaining. the members in. closed i position and a latch'pi'voted tov one'ofsfaid members and Aadapted to engage'the 'otherI for varying the initialfseparation Vof said lngsaccording to the width of4 saidiga'pg.

',In testimony whereof I .havehereunto set H13/hand in presence of two subscribing wit- Y .'ALvilN i.; KLECKLEY; f f

v pair ofjpivotedj awmembers, operating han- .dles formed 'aty 'one Y'end-.and lugs projecting 10o` sertion .within the gapv ofv a piston-ring, Y 

